Apparatus

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sensors Mode-S transponder

4CA36C

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-GWY · CESSNA 172 Skyhawk

Hex
4CA36C
Octal
23121554
Decimal
5,022,572
Country
IE
Tail
EI-GWY
Type
C172
No current signal · last broadcast 54m ago
Flights observed
103
Distinct callsigns
1
Country
IE
Last broadcast
54m ago

Last known position

Most recent position reported by Mode-S 4CA36C.

Country allocation

The ICAO 24-bit address 4CA36C falls within the block assigned to Ireland (IE) by ICAO Annex 10, Volume III. Every aircraft registered in Ireland receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
EIGWY - 103 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 EIGWY - Jun 2, 18:40 UTCJun 2, 19:00 UTC20m
2026-06-02 EIGWY WAT → WAT Jun 2, 13:30 UTCJun 2, 15:10 UTC1h 40m
2026-06-02 EIGWY WAT → WAT Jun 2, 09:50 UTCJun 2, 11:45 UTC1h 55m
2026-06-02 EIGWY WAT → WAT Jun 2, 08:00 UTCJun 2, 08:45 UTC45m
2026-05-31 EIGWY - May 31, 11:05 UTCMay 31, 11:35 UTC30m
2026-05-31 EIGWY - May 31, 09:40 UTCMay 31, 10:20 UTC40m
2026-05-29 EIGWY WAT → WAT May 29, 14:10 UTCMay 29, 14:55 UTC45m
2026-05-29 EIGWY - May 29, 12:35 UTCMay 29, 13:25 UTC50m
2026-05-29 EIGWY - May 29, 10:30 UTCMay 29, 11:00 UTC30m
2026-05-29 EIGWY - May 29, 08:10 UTCMay 29, 09:25 UTC1h 15m
2026-05-27 EIGWY - May 27, 19:20 UTCMay 27, 19:40 UTC20m
2026-05-27 EIGWY - May 27, 17:15 UTCMay 27, 18:40 UTC1h 25m
2026-05-27 EIGWY WAT → WAT May 27, 15:30 UTCMay 27, 16:25 UTC55m
2026-05-27 EIGWY - May 27, 13:40 UTCMay 27, 14:35 UTC55m
2026-05-27 EIGWY - May 27, 07:30 UTCMay 27, 08:25 UTC55m
2026-05-26 EIGWY - May 26, 18:40 UTCMay 26, 19:40 UTC1h 0m
2026-05-26 EIGWY WAT → WAT May 26, 16:15 UTCMay 26, 17:09 UTC55m
2026-05-26 EIGWY - May 26, 13:40 UTCMay 26, 13:50 UTC10m
2026-05-26 EIGWY - May 26, 11:50 UTCMay 26, 12:45 UTC55m
2026-05-25 EIGWY - May 25, 15:35 UTCMay 25, 16:15 UTC40m
2026-05-25 EIGWY - May 25, 13:35 UTCMay 25, 14:10 UTC35m
2026-05-25 EIGWY - May 25, 11:20 UTCMay 25, 11:55 UTC35m
2026-05-25 EIGWY - May 25, 10:05 UTCMay 25, 10:25 UTC20m
2026-05-24 EIGWY - May 24, 16:45 UTCMay 24, 18:25 UTC1h 40m
2026-05-24 EIGWY - May 24, 15:30 UTCMay 24, 16:10 UTC40m
2026-05-24 EIGWY - May 24, 13:30 UTCMay 24, 14:20 UTC50m
2026-05-24 EIGWY - May 24, 12:00 UTCMay 24, 12:50 UTC50m
2026-05-24 EIGWY - May 24, 10:05 UTCMay 24, 11:10 UTC1h 5m
2026-05-24 EIGWY - May 24, 08:25 UTCMay 24, 09:20 UTC55m
2026-05-23 EIGWY WAT → WAT May 23, 18:25 UTCMay 23, 19:30 UTC1h 5m
2026-05-23 EIGWY WAT → WAT May 23, 15:55 UTCMay 23, 16:30 UTC35m
2026-05-23 EIGWY - May 23, 13:50 UTCMay 23, 14:30 UTC40m
2026-05-23 EIGWY WAT → WAT May 23, 11:50 UTCMay 23, 13:00 UTC1h 10m
2026-05-23 EIGWY WAT → WAT May 23, 07:00 UTCMay 23, 08:45 UTC1h 45m
2026-05-17 EIGWY - May 17, 07:05 UTCMay 17, 07:40 UTC35m
2026-05-16 EIGWY WAT → WAT May 16, 15:31 UTCMay 16, 17:05 UTC1h 35m
2026-05-16 EIGWY - May 16, 13:46 UTCMay 16, 14:35 UTC50m
2026-05-16 EIGWY WAT → WAT May 16, 07:11 UTCMay 16, 09:16 UTC2h 5m
2026-05-15 EIGWY WAT → WAT May 15, 18:50 UTCMay 15, 19:45 UTC55m
2026-05-15 EIGWY WAT → WAT May 15, 13:40 UTCMay 15, 14:45 UTC1h 5m
2026-05-15 EIGWY - May 15, 11:00 UTCMay 15, 12:50 UTC1h 50m
2026-05-12 EIGWY - May 12, 13:45 UTCMay 12, 14:30 UTC45m
2026-05-12 EIGWY - May 12, 11:30 UTCMay 12, 12:35 UTC1h 5m
2026-05-12 EIGWY WAT → WAT May 12, 07:55 UTCMay 12, 08:40 UTC45m
2026-05-09 EIGWY - May 9, 16:00 UTCMay 9, 16:45 UTC45m
2026-05-09 EIGWY - May 9, 15:05 UTCMay 9, 15:20 UTC15m
2026-05-09 EIGWY WAT → WAT May 9, 13:45 UTCMay 9, 14:30 UTC45m
2026-05-09 EIGWY WAT → WAT May 9, 11:55 UTCMay 9, 12:55 UTC1h 0m
2026-05-09 EIGWY - May 9, 10:10 UTCMay 9, 10:50 UTC40m
2026-05-08 EIGWY - May 8, 17:30 UTCMay 8, 18:30 UTC1h 0m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the EI-GWY page for operator, model, and routing details .

Mode-S 4CA36C frequently asked

What is Mode-S code 4CA36C?
4CA36C is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-GWY.
Where is Mode-S 4CA36C registered?
Mode-S code 4CA36C is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA36C broadcasting right now?
No active broadcast right now. Last signal was 54m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA36C, octal 23121554, decimal 5,022,572.
What flights does 4CA36C operate?
Mode-S 4CA36C has broadcast 1 distinct callsign, including EIGWY.